Re: ubuntu server 7.04 console framebuffer resolution

Thanks, Mitch. Your suggestion works on an ubuntu desktop install, but not
on my ubuntu server install. Just to be clear, my installation iso is
ubuntu-7.04-server-i386.iso, not ubuntu-7.04-desktop-i386.iso. Framebuffer
doesn't show up in dmesg (using sudo just to be sure):

$ sudo dmesg | grep framebuffer
Password:
$

and adding the "vga=<vesa number>" option in menu.lst results in an
unrecognized video mode on reboot. However, there is an fbcon module, and
three other modules that use it:

$ lsmod | grep fbcon
fbcon 42656 0
tileblit 3584 1 fbcon
font 9216 1 fbcon
bitblit 6912 1 fbcon

so framebuffer is apparently not compiled into the kernel, but is loaded as
a module. Is there a way to change the video mode, either in the init
scripts when the module is loaded, or once the machine is up?

Clem

On 9/25/07, Mitch <flik@xxxxxxxxxxxxxxx> wrote:

On Mon, Sep 24, 2007 at 09:46:32PM -0400, Clem Takahashi wrote:
Ubuntu users,

I just loaded ubuntu server (minimal install - no X server) for the
first
time and would like to use the framebuffer vesa video modes for my tty
console. In slackware I could do this by setting the vga=<vesa mode,
e.g.
791> in lilo or grub. Apparently that's not how it's done in
Ubuntu. There
is an fbcon (which presumably stands for "framebuffer console") module
loaded so framebuffers are apparently not compiled into the kernel but
are
available as modules, so how do I use the framebuffer video mode short
of
recompiling?

Clem

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I am running Edgy, and the VESA framebuffer is there... here's the
output from 'dmesg | grep framebuffer':

[17179573.692000] vesafb: framebuffer at 0xf0000000, mapped to
0xf8880000, using 7680k, total 16384k
[17179573.824000] Console: switching to colour frame buffer device
160x64
[17179573.824000] fb0: VESA VGA frame buffer device

I added 'vga=795' to the following line in /boot/grub/menu.lst...

# defoptions=quiet splash vga=795

... and then ran 'sudo update-grub'

Framebuffer console works fine!

I am _fairly_ certain I did this on a Feisty install as well, but since I
switched back to Edgy, I can't be sure.

--
Mitch

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